Catch and Release Ethics

21. August 2025.
A close-up of an angler’s hands gently releasing a beautiful wild brown trout in a shallow, crystal-clear river.

The first wild trout I ever caught was a jewel. It wasn’t large, maybe nine inches of spirited muscle and kaleidoscopic color that flashed in the clear mountain water. As I gently cradled it in my wet hands, I felt a profound connection to that fish and the river it called home. In that moment, releasing it felt just as important, if not more so, than the catch itself. That feeling has never left me. Catch and release is more than just a fishing technique; it’s a conservation ethic that ensures the future of our rivers and the wild creatures that inhabit them. It’s about preserving that same sense of wonder for the anglers who will follow in our footsteps.

my first wild trout photographed and released
Brown trout from Krušnica

Why Catch and Release Ethics Matter

Preserving wild fish populations is the cornerstone of sustainable angling. When we choose to release a fish, we are giving it the chance to grow, reproduce, and contribute to a healthy, thriving ecosystem. This is especially critical for native and wild trout populations that face increasing pressures from habitat loss and a changing climate.

However, simply letting a fish go doesn’t guarantee its survival. Improper handling can lead to stress, injury, and delayed mortality, even if the fish swims away. Research has shown that catch and release mortality rates can vary widely, with some studies indicating an average of around 18%, but this figure is heavily influenced by how the fish is handled. With careful and ethical practices, survival rates for species like brown and cutthroat trout can be well over 99%.

Key Principles of Ethical Catch and Release

Adopting a few key principles can dramatically increase the chances of a fish’s survival and ensure that our impact on the water is a positive one. Here are the essentials for every beginner to master:

  1. Use Barbless Hooks: Barbless hooks are significantly easier and quicker to remove, causing less damage to the fish’s mouth. This minimizes handling time and stress on the fish. You can buy barbless hooks or simply pinch down the barbs on your existing hooks with a pair of pliers.
  2. Land Fish Quickly: While the fight is a thrilling part of the experience, it’s important to land the fish as quickly as possible. Prolonged fights exhaust the fish, filling their muscles with lactic acid and reducing their chances of survival after release.
  3. Keep Fish Wet and Minimize Air Exposure: A fish’s protective slime coat is its first line of defense against infection. Always handle fish with wet hands to protect this layer. Think of a fish out of water as a person holding their breath; aim to keep air exposure under 10 seconds whenever possible.
  4. Handle Fish with Wet Hands: If you must handle a fish, do so with clean, wet hands. Cradle the fish gently and avoid squeezing its belly, which can damage internal organs. For proper handling techniques, see our guide on How to Hold a Trout When Removing the Hook.
  5. Revive Fish Properly: Before letting a fish go, it’s crucial to ensure it has recovered. Hold the fish gently in the water, facing into the current. This allows oxygen-rich water to flow over its gills. When the fish begins to swim strongly on its own, you can release your grip.

Quick Reference Table

Best PracticeWhy It MattersBeginner Tip
Barbless HooksReduces injury during hook removal and speeds up the release.Pinch down the barbs on your hooks with pliers before you start fishing.
Keep Fish WetProtects the fish’s vital slime coat, which guards against infection.Always wet your hands thoroughly before touching a fish.
Minimize Air ExposureFish cannot breathe out of water and can suffocate quickly.Try to keep the fish in the water as you remove the hook. Aim for less than 10 seconds of air exposure if a photo is taken.
Gentle HandlingReduces stress and prevents internal injuries.Cradle the fish horizontally, supporting its weight. Never squeeze the fish.
Proper RevivalEnsures the fish is strong enough to survive and avoid predators.Hold the fish facing into the current until it swims away under its own power.
text Catch and Release composed of small stones in the river

Common Beginner Mistakes

Even with the best intentions, beginners can make mistakes. Being aware of these common pitfalls can help you avoid them:

An infographic titled "Common Beginner Mistakes" that explains common errors when handling fish. It highlights four mistakes: (1) Lifting fish too high—can cause severe injury if dropped, so keep them low to the water; (2) Squeezing fish—damages internal organs, instead support the fish's weight from underneath; (3) Dragging fish—removes protective slime and can injure them, avoid pulling fish on the ground; (4) Hook removal delay—delaying hook removal harms fish, so use pliers or hemostats for quick removal. Each mistake is illustrated with visuals showing incorrect handling (marked with a red X) and correct handling (marked with a green check).
  • Lifting fish too high for photos: Always keep the fish low to the water. A dropped fish can be severely injured.
  • Squeezing fish around the belly: This can damage their internal organs. Support the fish’s weight from underneath.
  • Dragging fish onto rocks or sand: This removes their protective slime coat and can cause injury.
  • Taking too long to remove the hook: Have your pliers or hemostats ready for a quick and easy removal. For more on proper handling, refer to our guide on How to Hold a Trout When Removing the Hook.

FAQs Section

Does catch and release really work? 

Yes, when done correctly, catch and release is a highly effective conservation tool. While there is always some level of mortality, proper handling significantly increases survival rates, helping to maintain healthy and sustainable fish populations.

Should I use barbless hooks every time? 

Absolutely. Using barbless hooks is one of the easiest and most effective ways to reduce harm to fish. They make hook removal faster and less damaging, which is better for the fish and often easier for the angler.

How long can I safely keep a fish out of water? 

Think of it like holding your breath—the less time, the better. A good rule of thumb is to keep it under 10 seconds. This is especially important in warmer weather when water has less dissolved oxygen.

Can I still take photos of my catch? 

Yes, but do it with the fish’s well-being as the top priority. Keep the fish low over the water, support it gently with wet hands, and make it quick.

A Personal Reflection

The ethics of catch and release are about more than just the fish; they are about the future of fly fishing. They are about ensuring that our children and grandchildren can experience the same thrill of a wild trout on the line. By adopting these simple practices from day one, you are not just becoming a better angler, but also a steward of the waters we all love.

Next time you land a fish, remember—how you release it matters just as much as catching it.

Nedžad Coha Nadarević on river Sanica

Hi There!

My name is Nedžad Nadarević, though my friends know me as Coha. I’m a family man first, with a loving wife and two amazing children. My weekdays are spent in the structured world of IT administration in a court and SEO optimization, but my soul truly comes alive on the water. I am completely obsessed with fly fishing and the intricate art of fly tying.

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